I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
sideman sidemen seedman seedmen stamen stamina
bedeman sideman deadman bedemen demean demon adman aidman badman beadman daman reedman hetman eudemon gateman goodman leadman madman rodman seedman headman routeman sidemen woodman